Insulating composition.



UNITED STATES PATENT OFFICE.

WILLIAM RUMEL, OF SALT LAKE CITY, UTAH, ASSIGNOR TO THE RUMEL PATENTSCORPORATION, A CORPORATION OF UTAH.

INSULATING COMPOSITION.

No Drawing.

which a non-conductor of heat is to be applied. 7

The invention has in view an insulating material which is relativelycheaper than asbestos, and which will ofier a more effective barrier toradiation between two mediums of different temperatures, although I donot claim the composition to withstand the ravages of fire.

In carrying out my invention I use lime, sawdust and hair, the limebeing preferably in the form of lime putty, the resultant of slakedlime. v

In preparing the composition, the lime is first slaked; then the liquidcalled lime putty is drawn oil', and into the lime putty is mixed thesawdust and hair, preferably Specification of Letters Patent.

Patented Aug. 8, 1911.

Application filed September 28, 1910. Serial No. 584,346.

in the following proportions: 65% lime putty, sawdust, 5% cow hair, orcommon plastering hair. This composition when once mixed can be allowedto dry, and re-moistened when wanted for use.

The composition is applied in a moistened state and when the pipe orboiler in question is hot, for the reason that the pipe'and boiler arethen expanded, whereas if applied with the pipe or boiler cold, theexpansion of the same when heated would cause the insulation to crack.The composition can also be molded in forms, with an outer coating ofcanvas, and applied when dry.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

An insulating material consisting of a mixture of 65% lime putty, 30%sawdust and 5% plastering hair.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM RUMEL.

Witnesses FRANK RUMEL, ARTHUR L. GENERAUX.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

